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' UNrTEn STATES PATENT OFFICEQ HENRY LEFEBER, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO ROBERT H. FARLEY, ISAAC KEELER, AND ALFRED P. PHIPPS, ALL

OF SAME PLACE.

QUILTING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 437,439, dated September 30, 1890.

Application filed June 2,1888. Serial No. 275,869. (No model.) 1

To all whom it may concern.-

Be it known that 'I, HENRY LEFEBER, a citizen of the United States, and a resident of Philadelphia, Pennsylvania, have invented certain Improvements in Quilting-Machines, of which the following is a specification.

The object of my invention is to construct a simple and eflicient machine for forming plain or elaborate designs upon the fabric to be quilted.

In the accompanying drawings, Figure 1 is a side elevation of myimproved quilting-machine. Fig. 2 is a longitudinal section on the line 1 2, Fig. 3, drawn to an enlarged scale; and Fig. 3 is a plan view showing the'cam.

A is the base of the machine, and B is an arm carrying at its outer end a head 0.

b is the needle-bar, which is driven through the medium of a cam in the head by the shaft O, having preferably at its outer end a flywheel. This shaft is geared to a vertical shaft 0 by bevel-gears 0 c and this shaft in turn is driven from the main shaftE through bevel-gears c 0 This main shaft is provided with a pulley E driven by a belt from any convenient power-driven shaft.

b is the presser-bar, and b is the presserfoot.

The needle mechanism and the presser-bar mechanism are of the ordinary construction.

d is the takeup arm pivoted to the head 0 and governed by a cam mounted on the shaft 0.

a is a stud secured to or forming part of the base-plate, and situated directly in line with the needle, and secured to this stud is a throat-plate (F. The stud a is hollow, and in it is the rotary shuttle F, constructed in the following manner: The shuttle is mounted 011 a revolving spindle f, driven through the medium of a cranjk-arm f from one arm of a lever F, which is pivoted through the me dium of a link f to the base-plate of the machine. The other arm of the lever is yoked and spans an eccentric 0 so that as the vertical shaft 0 revolves the eccentric will vibrate the lever, and consequently the shuttle will be revolved. On the exterior of this shutand through the center-of this shuttle passes avertical spindle g cut away at its upper end to allow for the formation of the loop of the needle-thread, and on this spindle is placed an ordinary spool of cotton, so that as the needle-bar is reciprocated and the needle forms a loop the hook will enter the loop, carrying with it the spool or shuttle thread and pass the spool-thread through the loop, forming a lock-stitch.

I have shown one form of shuttle that can be used in connection with my machine; but it will be understood that a shuttle of any ordinary construction may be used in its stead without departing from my invention.

On the base-plate A is an annular rim A, forming a bearing for the gear-wheel G, by which the quilting-frame is revolved. This gear-Wheel engages with a pinion H on an upright shaft H, having at its lower end a wormwheel H gearing with a worm H on the main driving-shaft E. Carried by this gear-wheel is a quadrangular frame I, connected to the gear-wheel by spokes I. The frame I has two longitudinal undercut ribs 1 on two ofits sides, and situated on the frame I is the work-carrying frame K, having tapered ribs adapted to slide in the undercut portions of the frame I, so that it will be seen that the work-carrying frame can be moved toward and from the center of the carrying-frame I as said carrying-frame is rotated.

Mounted in bearings j on the frame I is a cam J, having a groove j of any irregular shape in its face. In this groove j rests a pin m, having a friction-roller m. This pin is fastened to the under side of the work-carrying frame K.

On the shaft J of the cam J is mounted a gear-wheel J which meshes with an annular rack L on the base of the machine, so that as the carrying-frame I revolves the cam will not only rotate around the axis of the gearwheel G, but also around its own axis.

The operation of the machine is as follows: The cloth is clamped or otherwise suitably secured to the work-carrying frame K. The machine is then set in motion by any suitable clutching or belt-shifting devices, and as the needle reciprocates the frame I, carrying the cam J and the frame K, will revolve through the medium of the gear-wheel G and the gearing above described. As the frames revolve, the pin m, carried by the work-frame K, is moved toward or from the center of rotation of the frame I, as the groove 9' in the cam J dictates.

The cam can be readily removed and another cam of a different character inserted to form different designs, when required.

When large pieces of fabric are to be quilted, one portion is quilted at a time and then moved and another portion clamped in position and quilted, and so on, until the quilting is completed.

I claim as my invention- 1. The combination, in a quilting-machine, of the sewing mechanism, the carrying-frame, and mechanism, substantially as described, for rotating said frame, with a work-frame guided on said carrying-frame, a cam mounted on the carrying-frame, a projection on the work-frame meshing with the cam, and devices, substantially as specified, for operating said cam.

2. The combination,in a quilting-machine, of the sewing mechanism, the carrying-frame,

and mechanism for rotating said frame, witha work-frame guided on said carrying-frame, a cam mounted on the carrying-frame, a pin on the Work-frame engaging with said cam, a gear-Wheel on the shaft of the cam, and an annular rack on the base of the machine engaging with the gear-Wheel, so that on the rotation of the carrying-frame the Work will be moved toward and from the center of rotation of the carrying-frame, substantially as set forth.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HENRY LEFEBER. Witnesses:

Jos. H. KLEIN, HENRY HOWSON. 

